50521220 has 24 divisors (see below), whose sum is σ = 106399104. Its totient is φ = 20150496.

The previous prime is 50521181. The next prime is 50521223. The reversal of 50521220 is 2212505.

It is not an unprimeable number, because it can be changed into a prime (50521223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899 + ... + 10781.

It is an arithmetic number, because the mean of its divisors is an integer number (4433296).

Almost surely, 2^50521220 is an apocalyptic number.

It is an amenable number.

50521220 is an abundant number, since it is smaller than the sum of its proper divisors (55877884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50521220 is a wasteful number, since it uses less digits than its factorization.

50521220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259 (or 7257 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 50521220 is about 7107.8280789563. The cubic root of 50521220 is about 369.6788545262.

Adding to 50521220 its reverse (2212505), we get a palindrome (52733725).

The spelling of 50521220 in words is "fifty million, five hundred twenty-one thousand, two hundred twenty".